Light Waves And Their Uses

Light Waves And Their Uses Erpi Classroom Film, Inc. 04:45:53 Telescope moving in observatory dome seen from outside. Still of Andromeda galaxy. Man adjusting microscope & view of collodial particles. 04:46:15 Coney Island Luna Park, amusement park rides & buildings w/ electic lights. Men beside distorting mirrors. Animated diagram of light beams reflecting on flat & curved mirrors. Animated diagram of light rays expanding; curved & plain wave fronts reflecting from various shaped mirrors. Point of principal focus shown. 04:48:32 Man using sexton. Moving & polishing mirror for Mt. Wilson observatory. 04:48:47 Liquids & light waves. Animation of distortion of glass, air & liquids. Waves thru lens. 04:50:16 Cross section of eye w/ animation of light. Variation w/ correct lenses for short sighted & far sighted vision. 04:51:13 Astigmatism shown w/ & w/o proper glasses. Light waves & reflection, refraction & interference shown & the effect of the length of light wave lengths. Mechanism to split light. 04:53:17 Factory assembly line w/ crankshafts & motor blocks. 04:53:26 Gauge blocks for measuring shown thru glass. Polarized light illustrated w/ animated diagram. 04:54:18 View thru polarizers cutting off light by turning 90 degrees. Use in measuring strain in gears. 04:54:53 Spectrum of light wave lengths animated. The End. Educational Films; 1930s; 1938; Physics; Animation; Graphics;